Swift: NSDictionary as NSArray

Question

let voicemailFiles = voicemail.value( forKey: "voicemail") as! [AnyObject]            
// Could not cast value of type '__NSDictionaryI' (0x10ca8a228) to 'NSArray' (0x10ca89d78)


let voicemailFiles = voicemail.value( forKey: "voicemail") as! [String : String]
// Could not cast value of type '__NSArrayI' (0x104df9448) to 'NSDictionary' (0x104df7fa8).

当尝试将JSON (如下面所示)放入变量中时，我碰到了"voicemail"的2种转换方法的上述错误。

let config = voicemail.value(forKey: "config") as AnyObject

配置键的这一行工作得很好。

voicemail的变量是键voicemailboxes的[AnyObject]值。

{
  "voicemailboxes": [
    {
      "config": {
        "id": "5",
        "description": "Test"
      },
      "voicemail": [
        {
          "id": "id001",
          "caller": "...",
          "caller_UK": "...",
          "called": "+...",
          "called_UK": "...",
          "received": "...",
          "duration_seconds": "..."
        },
        {
          "id": "id002",
          "caller": "...",
          "caller_UK": "...",
          "called": "..."
        }
      ]
    }
  ]
}

Answer 1

根据您的JSON，很明显

voicemailboxes是[[string:Any]] (字典阵列)和

voicemail是[[String:String]] (字典阵列)

注意：：检查正确响应所需的guard或if let只是一个例子

你可以像

((dictMain["voicemailboxes"] as! [[String:Any]]).first!["voicemail"] as! [[String:Any]])

希望这对你有帮助

Answer 2

语音信箱是一组字典。

语音信箱也是一系列字典。

需要对它们进行适当的解析。在操场上：

let json = """
{
"voicemailboxes": [
{
"config": {
"id": "5",
"description": "Test"
},
"voicemail": [
{
"id": "id001",
"caller": "...",
"caller_UK": "...",
"called": "+...",
"called_UK": "...",
"received": "...",
"duration_seconds": "..."
},
{
"id": "id002",
"caller": "...",
"caller_UK": "...",
"called": "..."
}
]
}
]
}
"""
let data = json.data(using: .utf8)!
let jsonDict = try! JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.allowFragments) as! [String:Any]
let voicemailboxes = jsonDict["voicemailboxes"] as! [Any]
let voicemailboxesfirst = voicemailboxes.first as! [String:Any]
let voicemail = voicemailboxesfirst["voicemail"] as! [Any]
let voicemailfirst = voicemail.first as! [String:Any]
print(voicemailfirst)

输出：

“接收”：.，“呼叫”：：+.，"id"：id001，"caller_UK"：.，"duration_seconds"：.，“来电者”：.，"called_UK"：.

Answer 3

使用以下代码

if let any = voicemail.value( forKey: "voicemail") {
            if let tmpArray = any as? Array {
                let voicemailFiles = tmpArray
            }
}